Electric indicator for railways.



EB PR. 4i 1905c PATENT Cv' m11 um@ @Hotham P. I. GHANDEYSSON. ELECTRIC INDIGATGR PGR RAILWA APPLICATION FILED FEB, 131904.

No. 785,628.` PATBNTEE APR. 4. 1995. P. I. GHANDEYSSGN.

ELEGTRIU NDIGATGR FR RAILWAYS,

MPLIUATION FILED 1" 1904.

l MB l 4 SHEETS-SHEET 2.

A. SHEETS-SHEET s.

WAYS.

P. I. GEANDEYSSONL LDGTOP EUR EAl APELIOATION FILED FEB. 13.1904.

ELECTRIC P. l. GEANDEYSSON.

TENTE) APRa 4, 1905.

ELEGTRG INDGATGR FOR RALWAS.

APPLIOATON FILED PEB.

f1- SHEETS-SHEET L UNITED STATES Patented April 4, 1965.

PATENT OFFICE.

PIERRE I. CHANDEYSSON, OF NORTH JUDSON, INDIANA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO ROBERT D. PETERS, OF KNOX,

INDIANA.

ELECTRIC INDICATOR FOR RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 786,628, dated April ll, 1905.

Application tiled February 13,1904:I` Serial No. 193,456.

To n/ZZ whom, it may concern: v

v Be it known that I, PIERRE I. CHANDnYssoN, a citizen of the Unit-ed States, residing at North Judson, in the county of Starke and State of Indiana, have invented new and useful Improvements in Electric Indicators for Railways, of which the following is a specification.

My invention relates to new and useful ini? provements in electric indicators for railways; and its object is to provide a system whereby persons located at any stations along the railway can promptly and accurately determine the exact location of one or more trains between the stations. A

A further object is to provide a system which will automatically indicate the progress of the train or trains and their direction and exact location at any time and which will warn the persons at the stations of any break in the track or of any obstruction which may be placed thereon.

With the above objects in view the invention consists of an indicator adapted to be arranged in each station and having' electrical connection with each block of the series into which the track between the stations is divided.

'Ihe invention also consists of a series of indicators adapted to be automatically placed in circuit with a source of electricity whenever the current, which normally passes through the rails of each block to a relay, is short-circuited by a train of obstruction or whenever one or more of the rails included within the block is removed or broken.

The invention also consists of a series of these indicators, one being provided for each block, so that the exact location of the train or obstruction, together with the progress of the train, can be accurately indicated at either of the stations connected by the system.

The invention also consists in the further novel construction and combination of parts hereinafter more fully described and claimed, and illustrated in the accompanying drawings,

showing the preferred form of my invention, and in which- Figure 1 is a diagraminatical view showing an indicator adapted to be placed in the station at one end of the system and also showing its connection. with two of the blocks. Fig. 2 is a similar view showing the manner of connecting' the line-wires of the system with other blocks of the system. Fig. 3 is a diagrammatical view of the indicator used in connection with half as many line-wires as there are blocks. Eig. et is a diagrammatical view showing theindicator connected to two blocks of the system, and Fig. is a. similar view showing the manner of connecting two of the line-wires to four blocks of the system.

rI`he track between two stations of the railway is adapted to be divided into blocks, which are insulated from each other, and the rails of each block are bound, so that a current of electricity is free to pass from one end to the other of each side of the block.

In Figs. l and 2 of the drawings I have shown a section of a railway divided into six blocks, which are indicated by the letters A, B, O, l), E, and E, and one line-wire is provided for each block. These wires I have indicated by the characters a, L, c, d, ff, andf, respectively. Electrically connected with the rails of each block and at one end thereof is a battery i, and a magnet 2 is electrically connected to the two rails at the other end of the block by means of wires 3 and e. This magnet has an armature 5, which is adapted to bear upon a contact (i. The line-wire used in connection with the block of this contact t3 is broken adjacent thc armature, and one end thereofl is connected with the contact 6 by a wire 7, while the other end is connected by a wire 8 with the armature 5. As a magnet 2 of each block is normally energized by the current from the battery I, it will be seen that armature is normally electrically connected with the contact 6, and therefore currents can normally pass through all the line-wires by way of the armatures 5 and the contacts G.

A series o'l3 magnets fr', W, c', (Z, c', and f/ is arranged at each end of the svstcln, and these two series are com'iected to the line-wiriis A., B, C, l), it, and l?, respectively. and with a common ground-wire, electrically connected to a battery 10 or other source ol electricity. `l'dach magnet has an armature 1l, electrically cormccted by wires l2 and 13 with a source 14 of electricity, and a wire 15 extends from this source and is electrically connected with oppositely-disposcd lamps 17 and 18. Contacts if) and 2O are arranged at opposite sides oiE each armature l1, and the contacts 19 are electrically connected to the lamps 18, while contacts 2O are similarly connected to the lamps 17. @ne lamp 17 and one lamp 18 provided for cach armature, and it will therelore be seen that the number ol" lamps 17 and oi." lamps 18 is equal to the number of blocks. As the arnnitures 5 normally bear on the contacts 6, a circuit Ais normally established from the source 10 through the magnets a', b, c, d.7 c. and j" and through their respective line-wires, and therefore armatures 11 are held normally in position upon the contacts 20., thus establishing a circuit trom the source 14- through the V.vires 18 and 1Q, the armatin'cs 11, and the contacts 2O to lamps 17, and from these lamps through wire 15 to the source. 1t will thus be seen that the lamps 17 will be normally lighted.

i train in leaving' one station and moving upon the tracks ol the block it will promptly short-circuit the current from the battery 1 oi' said block, and therefore the armature or' the magnet 2, connected to said block, will be released and will automatically break its connection with its contact 6. The current through thc line-wire a, extending from said block, will thus be broken, and its magnet o will be dei'nergized and release its armature 11, herebiY breaking the circuit from the source 1-1 to the lamp 17, connected tothe line-wired., and establishing' a circuit through the lamp 18 ot' said line-wire .from the source 1-1 through 'wire 15, contact 19, and wires 1Q and 13. The same result will occur in the event oll the placiilg ot' an obstruction upon the track ot said block which would tend to short-circuit the current iroin the battery 1 and also by `the breaking ol the circuit from batti y 1 tlirough the removal or break ol one more ot' the rails included within the block. When a moving train leaves the block A and passes onto the adjoining block 1%, the lamp 53 of thc two blocks will both be lighted simultaneously for the short period during which the trainis upon the two blocks. lVhen, however, the train passes entirely upon the block B, the three circuits- -to wit,that th rough the magnet '2, through the magnet o1', and throne-h the lamp 17, connected to the magnet ff-will be reestablished. 1t will thus be seen that persons stationed adjacent the indicator can readily determine the exact lolation of a train as it moves from one block to another of the system, and bysimple methods ol calculation the. speed of the train can be determined as well as the nature thereof. For instance, by comparing the length of the block with the time required 'for the train to pass thereover the speed can be readily determined, and by taking into consideration the speed ot' the train and the time required in its passage 'from one block to the other f the length olE the train can be readily calculated. lThe lamps 17 and 18 may be placed in a suitable casing provided therefor, and the lamps 17 are preferably white, while the lamps 18 may be red or any other desired color.

il/'hilo l have in Figs. 1 and 2 shown a system in which one line-wire is employed for each block, l. may, it desired, utilize a modilicd system in which one-half as many linewires may be used as there are blocks. shown this modilication in Figs. 3, and o, which represent the indicator connected by three line-wires with six blocks. With this niodilied arrangement two connected sources 21 and 22 of electricity are provided for every two blocks and adjacent the adjoining ends ol' said blocks. The batteries 1 and magnets i). are the same in this modified form as in the form heretofore described; but the armatures and 23 of the two magnets are electrically connected by a wire 241. An armature A5 is arranged adjacent and is adapted to move with the armature 23, and a Contact Z6 is interposed betveen the armatures 23 and 25, and contacts 2.7 and 28 are arranged at opposite sides of said armatures. Th line-wire used in connection with the two blocks is broken adjacent the magnets '2 thereof, and one end is connected to the contacts 27 and 28, while the other end is connected to the contact 26. The sources 21 and 2:2 are clectricall,7 connected to armature and to a contact 29, arranged at one side of the ari'nature 23d. A second contact 29 is located at the other side of the armature Q3 and is electrically connected to the two sources 21 and at a point therebetween. The line-wire extending vfrom two adjoining blocks G and il of this modified system extends to an indicator which is arranged in one or both of the stations at the ends of the system and is electrically connected to a neutra magnet 30, which in turn is electrically connected by a wire 31 with polarized relay 3Q, the north and south poles of which are indicated, respectively, by the characters N and S. Each line-wire of this system is connected in the same manner to two magnets, and

each ot' thefmagnets has an armature 33 provided at opposite sides with contacts 3-1 and 1 have lamps 37 are connected in the same manner toccntacts 35. lires 39 extend from the magnets to a ground-wire-iO. In this modified system a circuit is normally established through the magnets 2, and there fore the armatures 23 and 25 are normally in position upon the contacts 27 and 26, respectively, and the armatures 23 are normally in position upon contacts 29. A circuit is thus established through each line-wire by way of contact 27, armature 23, wire 2a, armature 23, sources 2l and 22, and armature 25, and therefore the armatures 33 are brought into position upon the contacts 35, so as to bring the lamp 37 normally in circuit with the source 36. When a train moves into position upon the block G, the magnet 2 connected thereto is promptly denergized and the two armatures 23 and 25 move automatically into position upon the contacts 26 and 28, respectively. The circuit through the line-wire is thus promptly reversed and passes through the armature 25 and the sources 22 and 21 to armature 23 and thence to armature 23. l rlhe train upon passing onto the next block H will short-circuit the current produced by the source l therein and deenergize magnet 2 of said blocli H. Acircuit will then be established through the line-wire by way of armature 25, contact 23, source 22, armature 23, armature 23, and Contact 26. .Vhen the train leaves the block G and moves upon the block H, the current will again be reversed by passing from the line-wire through the contact 27, armature 23, wire 24 armature 23, source 22, armature 25, and contact 2G. The current in these two last instanceseto wit, that produced when the train is upon the two blocks simultaneously and that produced when the train is entirely upon the block H-is less than the current produced when the train is on the block G. By this arrangement of circuits and the neutral and polarized magnets 30 and 32 it will be seen that the lamps 38 will be successively lighted as a train passes from one block to another, and the location of the train can thus be accurately determined at any time.

lWhile l have shown the use of lamps in connection with the indicator, it is to be understood that any form of indicator, either visual or auditory, may be substituted therefor.

An apparatus such as herein described is especially serviceable upon railways containing a single track.

The apparatus herein described is separate from any train signaling apparatus which might be employed and is of especial advantage to train-dispatchers, telegraph operators,

and other persons whose duty it to lieep advised of the movement of the trains under their control.

ln the foregoing description l have shown the preferred form of my invention; but l do not limit myself thereto, as l am aware that modifications maybe made therein without departing from the spirit or sacriicing any of the advantages thereof, and l therefore reserve the right to make such changes as fairly fall within the scope of my invention.

Having thus described the invention, what is claimed as new is- 1. rlhe combination with rails insulated from each other and forming blocks, each block being' provided with a source of electricity, and a relay electrically connected with the rails of each block; of source of electricity, electrically-connected armatures to the relays, contacts therefor, electrical connections between the contacts and the sources of electricity, magnets, electrical connections between two of said magnets and the contacts, said connections including the sources of electricity connected to the contacts, oppositelydisposed indicators, a source of electricity connected thereto, armatures for the magnets, contacts adapted to be alternately contacted thereby, and electrical connections between the indicators and the contacts.

2. The combination with a connected neutral and a polarized magnet; of armatures to the magnets, lamps, a source of electricity electrically connected to the lamps, means controlled by the armatures for directing a current from 'the source of electricity into either lamp, insulated rails forming bloclis, each block being provided with a relay connected thereto and normally energized, a connection between the relays and the magnets, and means IOO operated by the relays for successively operating the armatures of the magnets by a shortcircuiting device upon th rails.

3. ln an apparatus of the character described, the combination with a neutral and a polarized magnet electrically connected, a eircuit, indicators included within the circuit, and armatures for the magnet adapted to direct a currentinto either of the indicators; of a linewire connected to and in circuit with the magnets, insulated rails forming ad joining blocks, relays electrically connected to the blocks at adjoining ends thereof and having sources of electricity, electrically-connected armatures to the relays, contacts at opposite sides of one of the armatures and included within the linewire, contacts at opposite sides of the other armature and electrically connected to a source of electricity. a third armature movable with one of the first-mentioned armatures and electrically connected to said source of electricity, and contacts at opposite sides of said armature and included within the line-wire, whereby n. circuit is normally etublished th rough magnet :incl its soul-ee of electricity, electrical the line-wiieantl iseutenizitiezilly reversed by eonneetiene between the relay and the mile, the breaking' of the eii'enit of one 0l the 1"- und ai. soui'eeef electricity Connected te seid lays. mils. y

5 4. The combination with mils, u circuit in- Intestimonywheieo :ifix mysignatuie in I5 @hiding indicntei-S, :i soul-ee of electricity, en presence of two witnesses. armature, and oppositely-clisposetl contacts P.lERRE I. CHllDEYSSON. Connected to the indicators respectively; of a, 'Vitnesses: magnet@ source of eleeti'ieity connected there- HJALMAR A.. ELLINGSON,

IO to, :i relay for Closing,l the eiieuit between the JAMES C. FLETCHER. 

